کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1562110 999579 2011 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A comparative study of Knudsen diffusion in cellular metals
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مکانیک محاسباتی
پیش نمایش صفحه اول مقاله
A comparative study of Knudsen diffusion in cellular metals
چکیده انگلیسی

This paper addresses Knudsen diffusion in cellular metals. Knudsen diffusivities for air at room temperature are calculated for a representative cross-section of the different types of cellular materials: a sintered fibre structure, a lotus-type porous metal, a sintered metallic hollow sphere structure and a M-Pore® aluminium foam. The geometrical discretization of the calculation models is based on computed tomography data. This approach is essential in order to address the complex geometries of cellular metals. In total, seven calculation models with porosities ranging from 0.26 to 0.92 are considered. In addition, anisotropy is investigated by determining directional components of the Knudsen diffusivity.


► Knudsen diffusion simulation on a cross-section of cellular metals.
► Characterisation of anisotropy.
► Knudsen diffusion simulation on computed tomography data.
► Simulation of the diffusion of air in cellular metals.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Computational Materials Science - Volume 50, Issue 9, July 2011, Pages 2666–2670
نویسندگان
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